{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 77908
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  "description": "A pneumatic tire which comprises a land portion (10) and a land portion (20). A main groove (50) extending along the tire circumferential direction is formed between the land portion (10) and the land portion (20). The land portion (10) comprises a groove wall (10a) that forms the main groove (50)…",
  "path": "/patents/1007194",
  "publishedAt": "2011-12-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/1353",
    "BRIDGESTONE CORP [JP]"
  ],
  "textContent": "A pneumatic tire which comprises a land portion (10) and a land portion (20). A main groove (50) extending along the tire circumferential direction is formed between the land portion (10) and the land portion (20). The land portion (10) comprises a groove wall (10a) that forms the main groove (50). The land portion (20) comprises a groove wall (20a) that forms the main groove (50). The groove wall (10a) and the groove wall (20a) are serpentine along the tire circumferential direction (R) when seen from a plane of the tread surface, and the groove width of the main groove (50) in the tread width direction (W TR ) varies in a predetermined repetition interval (») along the tire circumferential direction. The ratio of the minimum width (W MIN ) of the groove to the maximum width (W MAX ) of the groove satisfies a relation of 35% ‰¤ W MIN /W MAX ‰¤ 85%.",
  "title": "PNEUMATIC TIRE"
}